Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
As you can see above, Seko has honed in on the thing Gojo doesn't know how to handle, and that is his humanity.
Source: https://comicbook.com/anime/news/jujutsu-kaisen-season-2-gojo-invincible/